How severe is CVE-2018-10509?

CVE-2018-10509 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-10509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10509?

CVE-2018-10509 primarily affects Trendmicro Officescan. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-10509?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-10509 published?

CVE-2018-10509 was published on 2018-06-12 and last updated on 2026-06-17.

CVE-2018-10509

CVE-2018-10509 is a high-severity vulnerability in Trendmicro Officescan with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 4.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Trendmicro Officescan
Published: 2018-06-12
Last modified: 2026-06-17

Description

A vulnerability in Trend Micro OfficeScan 11.0 SP1 and XG could allow a attacker to exploit it via a Browser Refresh attack on vulnerable installations. An attacker must be using a AD logon user account in order to exploit this vulnerability.

Frequently asked questions

What is CVE-2018-10509?: A vulnerability in Trend Micro OfficeScan 11.0 SP1 and XG could allow a attacker to exploit it via a Browser Refresh attack on vulnerable installations. An attacker must be using a AD logon user account in order to exploit this vulnerability.
How severe is CVE-2018-10509?: CVE-2018-10509 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-10509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10509?: CVE-2018-10509 primarily affects Trendmicro Officescan. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-10509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-10509 published?: CVE-2018-10509 was published on 2018-06-12 and last updated on 2026-06-17.

References

https://success.trendmicro.com/solution/1119961

Affected products (3)

cpe:2.3:a:trendmicro:officescan:11.0:sp1:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan:xg:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*

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